Gas-generating oil burner



J. P. HILLIVIAN.

GAS GENERATING OIL BURNER.

APPLICATION FILED APR. I, 1922.

Patented De@ 12,1922.

y yINVENTOI? ATTORNEY Patented Dec. l2, 1922;.`

tratas. rarer o JOHN r. HILLMAN, or Kansas Grrr, ifrrssounr.

maur

rifle eas-Guunnfariue oit BURNER:

and useful'GasGenerating Oil Burner, of"

which the ollowing'is al'specication'.'

Myvinventionlrelates to gasgenerating oil burners, and particularly` toy a` `device of 'this lcharaoter which is used `in connection witlr furnaces and stoves.

The object of theinvention is to `provide" a simple and efficient gas generating oil burner-'having facility for converting `fuel I 1 5 g oil'into aivapor gas iwhichis combustible'andv thenT-to burn. the gas generated torproifide an- `intense ame z to: simultaneously heat 4'the gajs' generator to continue the generating processLand toradiateheat to keep the tur` zonace-or stove hot. t

Another object of the invent-ion is toprovide-thefburner with Vtacilityior automat-L f f densing fmanii'old' 16;V 1s connected between`V lt-he'gas holder, andtheretort 14, and thef p cally closing the mouth of 4the oil :feed inlet" y to the generator to prevent back pressure in 2-ieedline.` y

A further object of the invention is to suri round the generator with a cold air lue'to direct cold air to the burning gasv toieffect mazriniunrcombustion. of the gas'.

set Anotherlobject isi'to provide a'condensing manifold *to `deliver gas vflirornf the generatorl to the :gas holder andx to-effect condensation Ioi" the Vapor gas so that .the gas delivered .y

. retort isla"bossl8,-fthrough whiohbosses"I 1s190` a holel forming"an"inlet'l 719,'to thefretort, for

to the l gas holder yshall be substantially ;dry

355 l attainlthesefobj eets and other advantages byjmeans of the' combination of parts and"` structure illustrated -in 'y the accompanying drawing in which-Figure 1,1 yisra4 sectional View! ojagas generating, oil burner con- 40 fstructedC in` accordance with myJ invention, and, Figure 2, `isy a topi planl View of the complete device, and showing the same ink operative position onf the,y fire grate of a' furnace.` y i t Similarnurnerals of referencerei'er to corresponding `parts throughout the several views.` t i Referring-to the drawings-the numeral 1,I designates a `furnace tire grate provided with 50 the usuall grate bars 2f The burner comprisesan inverted U-,shaped airtlue 3, which is adaptedfor standing'v vertically of the fur- "nace and to extend down through the grate.V In theupper side ot' the horizontal portion 55V of the air flue is a hole 4, and directly therebelow, in the lower side of the flue is an 1922".-v serialA Nm erases:

opening/5, for the egress `ofthe airflowingr intotheflue toI theires @ver theai'rlflue'*l is a gas holder member 76, havinganoutletf througha boss 8, and inthe outlet `is suitably `60 mounted a nozzle 9,*whiohr-isfadapted foritsgprojection-' into'lthe air' flue; through* the hole 4,thereby, providing communication be# tween the gas holder and theilue,l` Theupperend otl1e'nozzle9, is fashioned `to seat 65v a valVeLlO, onf'the flower end-of a stem A1l, whiohf isy providedl eXternally with screw" threads'which engage internal1 screw threads in a' boss 12,/ which. l is integrale withthe upper sideof the gas holder, the upperpor-r 70 i tion.` of the steinlis formedat right angles totherstemrtoform a handle 13 forlmani'pui lating the valve flO. On. the fside' `portions Aof theair flue, inwardly-of the endsthereois' mounted afcirculargasgeneratinglretort leig,` 75 p provided with a oonvexed head 15, the gen'-1H erator or retort being stationed directly f below the'opening-, in the air flue: A. con`-Y manifold isl arrangedy yto pass through one side of theliueand tofbe partially housed thereby. The lower side of the retort is-lat,v so that. the retortA maybe `placed upon thelgrate lbars of the nfurnate and; thereby, assistf 85 `to fholdf the yair ifluevertical;

Ourthe 'inner `side ofthe lowerf'side of thel retort isl ani upwardlyextending/bossi 17,g i and'on the outer side fot the 'lower side ofthe-."1

beingf preventedrifrom leaving theinle't bylloo the `close l] oroXimity of its l'head tothe upper* l sideof the retort.-l In the'boss18,`is'screwedff the end of alpipe 22, which is conne'cted'with a fuel oil supply;` notv shown, andifon the" pipe is mounted 'a collar $23,. for .supporting 105 thereon: a :pan 24, which is extensive l enough to *catch Idripping oil and waste from the l burner, theipan being providedl with awstop'- cock-Q5, to draw off'the'contents of the pan. Encircling` the retort 'is a druml26`, which 110 able distance to form of the intervening space a'flue 2.7, for the passage of` cold air from belowy the .grate to the burning gas,- the drum being `heldin place by angle irons 28, which are attached to the drum and fastened on the sides of the air flue 3.

When the parts are operatively assembled, as shown in Figure l, the device .is placed in the furnace, upon the fire grate, suitable openings in the grate being made to permit the end portions of the air flue 3, to extend therethroughand project alittle distance into thevash pit, theretortll, being `thus broughtvl tobear on the upper side. of the grate. lj The feed pipey 22, is ,then screwed into the jretort, thepan `251;,.being mounted on the pipe, the latter then lbeing, connected with asupply ofgfuel oil, not shownal After the burner device is in yplace, in the furnace,

" thelupper sideof the grate is covered, preferab1y,.with asbestos 29,- .to prevent air {iowing vinto the lfurnace excepting .through` thek air flues 3 and. 27. The fuel oil :isthen pery mitted to flow through thefeed `line 22,;

through `the inlet i9, yintoy the retort, the pressure ofthe oil being suilicient to` press up the pin-20, untilv fthe yhead thereof# is against the upper side yof the4 retort and thereby keeping. `the mouth of the inlet open. From the retort the oil .rises through the manifold ,16, into the gas holder` 16,.

the oil `fallingthrough the lnozzle l9, and

through the openingy 5, in the air flue 3, upon the head of theretort, the valve l0, being opened .to permit the Voil to escapey from/the gas holder.v lThe oil is then lighted at the top of'the retort, whereupon the=oil will burn and eect a heating of 'all the parts of the device. When the oil isburning i.

ythe cold air from below the grate flows `into the furnace through both the air lflues 3 and 27, thus lcausingthe fire to burn'4 withgreat v heat and. effect a-heatingof the parts ofthe device.'` The heated parts generate gas from the oil untilthe retort vis hot enough togenerate gas `from the oil supplied toit and, thereafter, i the retort supplies all the gas requiredtoleep theiire alive. After the retort `becomes properly heated to generate gas-the oil vfed to the retort isconverted into a combustible gas or vapor which is more or less charged with moisture, the expansionof the gas induces a pressure to force the gas to flow throughthe manifold 16, into n. -the Vgas holder 6, and `from thence through thenozzle 9, into the air flue 3, where it mixes with the air flowing through the flue, thereafterpassing through the opening 5, to tie-*consumed `bythe fire started as hereinabove deseribed,fthe force of the flow of gas sending the gas down t"o and against the conveXedtop of the retort fromcwhence-it is spread outwardly of the retort to and against the sides ofthe furnace.

As the burning gas is spreading from the top of the retort,'.cold air from the ash pit of the furthe condensed moisture gravitatesbaclrto" the retort in liquid form, to lbe .again vapo rized.; This provision` causes deliveryv of `dry gas to the gas holder.

rPhe nozzle 9,'.beingremovably secured in the' gas holder outlet, theA nozzle vmayA be taken out and cleaned when necessary.l The i1 `taper of the valve 10, is designed to provide a point which shall enter into the noz` zle and thereby keep the same free of'dirt:` The taper also has relationto the proper feed of .gasby `manipulating the 1 valve -to regulate Vthe `flow of gas, the screw threads l on the stemof the valvepermitting of very close adjustments ofthe valve with its seat.- It is known that gas generating oil burn-k ers frequently-set up pulsations inthe gas ffeed .and create .back pressure in the oil feed (line- To prevent back pressure in the oil lfeed line, I have provided the pin 20, which is mounted in the inlet 19, so that if there vis back pressure the 'pin will drop-into the'` outlet and bring the under side of its lhead to bear on the end of the'voutlet, thereby, eifectually preventing back pressure in the oil feed line.

Having` described my invention what I)l claim is.-

l. In a gas combination of an inverted U-shaped air flue having an outlet opening intermediate 'of the horizontal portion thereof, a gas generating retort stationed below the outlet in said flue' and having an inlet projecting inwardly of the retort, a gas holder stationed above said air flue and vertically aligned with the outlet opening therein, a valve generating oil burner, 'the' mounted on said gas holder and operable vto regulate the flow of gas from Vthe holder to saidy air ue, and a manifold connected between said retort and said gas holder partially housed by said air iiue. 2; ln a gas generating oil burner, the combination of an inverted U-shaped air flue having an outlet opening intermediate of thehorizontal portion thereof, a gas generating retort stationed below the outlet lin said fiueandfhaving an outlet projectingy verticallyinward ofthe retort, a stopper movably 'mounted in the inlet in said retort `to normally close the mouth of the inlet, a `gas holder stationed above said airA flue and having an outlet-'projecting into the flue and vertically aligned with the outlet opening therein,'and a manifold connected ybetween and 1 iso said retort and said gas holder and partially housed by said air flue. j

3 ,In a gas generating oil burner, the combination of an inverted U-shaped `air flue having an outlet opening intermediate of its horizontal portion, a gas generating retort stationed below the outlet in said air flue and having aninlet projecting vertically inward of the retort, the head portion of said retort being convexed to form a spreader, a stopper movably mounted in the inlet in said retort to normally close the mouth of the inlet, a gas holder stationed above said air ue and having an outlet projecting into the flue and vertically aligned with the outlet opening therein, and a manifold connected between said retort and said as holder and partially housed by said air ue.

4. ln a gas generating oil burner, the combination of kan inverted U-shaped air line having an outlet opening intermediate OI its horizontal portion, a gas generating retort stationed below the outlet in said air llue and having an inlet projecting vertically inward of the retort, the head portion ofsaid retort being convexed to form a spreader, a stopper movably mounted in the inlet in said 'retort to normally close the mouth of the inlet, a gas holder stationed above sai-d air flue and having an outlet projecting into the flue i and vertically aligned with the outlet opening therein, a 'manifold connected between said retort and said gas Tholder and partially housed by said air flue, and a tubular member surrounding the sides of said retort and spaced therefrom to form with the sides of the retort a flue. U

Kansas City, Missouri, March 29th, 1922.

JOHN P., HILLMAN. Witnesses:

JOHN C. STEARNS, BATI'LE M. FARALE; 

